avesus · September 4, 2017 19:13
diff --git a/ios-fixed-keyboard.html b/ios-fixed-keyboard.html
 <!DOCTYPE html>
 <html style="height: 100%">
 <head>
  <meta name="viewport" content="initial-scale=1, minimum-scale=1, maximum-scale=1" />
  <style>
    #fixedsContainer {
      position: absolute;
      top: 0px;
      bottom: 0px;
      width: 320px;
      z-index: 1;
    }

    #input {
      /* Safari zooms the page in
         if font size is less than 16px */
      font-size: 16px;
      margin: 20px 0px;
      height: 20px;
      /*position: absolute;
      bottom: 0px;*/
    }

    #inputsPlane {
      position: absolute;
      top: 0px;
      bottom: 0px;
      z-index: 2;
    }
  </style>
 </head>
 <body style="margin: 0; padding: 0; height: 100%">
  <div id="fixedsContainer">
    <div style="position: absolute; top: 0px">Top</div>
    <div style="position: absolute; bottom: 0px">Bottom</div>
  </div>
  <div id="inputsPlane">
    <input id="input" type="text" value="Tap me">
  </div>

  <script>
    function onInputClick (event) {
      event.preventDefault();
      event.stopPropagation();
      var input = document.getElementById('input');
      input.style.height = '1px';
      input.style.bottom = '0px';
      input.style.position = 'absolute';
      input.focus();
    }
    function onInputFocus (event) {
      var input = document.getElementById('input');
      input.style.height = '20px';
      input.style.position = null;
      input.style.bottom = null;
    }

    var input = document.getElementById('input');
    input.addEventListener('touchend', onInputClick);
    input.addEventListener('mousedown', onInputClick);
    input.addEventListener('focus', onInputFocus);

    window.addEventListener('resize', function (event) {
    });

    document.documentElement.addEventListener('scroll', function (event) {
      body.style.backgroundColor = 'red';
      //if (document.body.scrollTop !== 0) {
        window.scrollLock = true;

        // Safari only in portrait mode reports smaller size.
        var newWindowHeight = window.innerHeight;
        // If iOS in portrait mode, real height when focused
        // is little bit bigger:
        newWindowHeight += 10.5;
        var offsetTop = document.body.scrollTop; // or window.pageYOffset - I don't know which is better
        var style = document.getElementById('fixedsContainer').style;
        style.bottom = null;
        style.backgroundColor = 'red';
        style.height = 60 + 'px';//newWindowHeight + 'px';
        //style.top = offsetTop + 'px';
        window.focusPatchApplied = true;
      //}
    });
  </script>

 </body>
	<!DOCTYPE html>
	<html style="height: 100%">
	<head>
	<meta name="viewport" content="initial-scale=1, minimum-scale=1, maximum-scale=1" />
	<style>
	#fixedsContainer {
	position: absolute;
	top: 0px;
	bottom: 0px;
	width: 320px;
	z-index: 1;
	}

	#input {
	/* Safari zooms the page in
	if font size is less than 16px */
	font-size: 16px;
	margin: 20px 0px;
	height: 20px;
	/*position: absolute;
	bottom: 0px;*/
	}

	#inputsPlane {
	position: absolute;
	top: 0px;
	bottom: 0px;
	z-index: 2;
	}
	</style>
	</head>
	<body style="margin: 0; padding: 0; height: 100%">
	<div id="fixedsContainer">
	<div style="position: absolute; top: 0px">Top</div>
	<div style="position: absolute; bottom: 0px">Bottom</div>
	</div>
	<div id="inputsPlane">
	<input id="input" type="text" value="Tap me">
	</div>

	<script>
	function onInputClick (event) {
	event.preventDefault();
	event.stopPropagation();
	var input = document.getElementById('input');
	input.style.height = '1px';
	input.style.bottom = '0px';
	input.style.position = 'absolute';
	input.focus();
	}
	function onInputFocus (event) {
	var input = document.getElementById('input');
	input.style.height = '20px';
	input.style.position = null;
	input.style.bottom = null;
	}

	var input = document.getElementById('input');
	input.addEventListener('touchend', onInputClick);
	input.addEventListener('mousedown', onInputClick);
	input.addEventListener('focus', onInputFocus);

	window.addEventListener('resize', function (event) {
	});

	document.documentElement.addEventListener('scroll', function (event) {
	body.style.backgroundColor = 'red';
	//if (document.body.scrollTop !== 0) {
	window.scrollLock = true;

	// Safari only in portrait mode reports smaller size.
	var newWindowHeight = window.innerHeight;
	// If iOS in portrait mode, real height when focused
	// is little bit bigger:
	newWindowHeight += 10.5;
	var offsetTop = document.body.scrollTop; // or window.pageYOffset - I don't know which is better
	var style = document.getElementById('fixedsContainer').style;
	style.bottom = null;
	style.backgroundColor = 'red';
	style.height = 60 + 'px';//newWindowHeight + 'px';
	//style.top = offsetTop + 'px';
	window.focusPatchApplied = true;
	//}
	});
	</script>

	</body>